PE-65793 Datasheet, PDF(3/7 Page) Pulse A Technitrol Company

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PE-65793 Datasheet, PDF (3/7 Pages) Pulse A Technitrol Company – ISDN S-Interface Transformers

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ISDN S-Interface Transformers

Transformer Selection & Packaging

Manufacturer

AT&T/Lucent

Mietec

Mitel

Motorola

National D

SGS Thomson

Siemens

Yamaha

Notes:

Part Number

T7903

MTC-2072

MT8930

MC145474/145475

MC145574

TP3420/34221

ST5420, ST5421

PEB 2080/2081/2085

PSB 2186

PEB 2084/2086

7405B

Dual

Surface Mount

TX & RX

PE-65795

A. In this catalog, turns ratio is expressed as

âprimary:secondaryâ. The term âCTâ designates a

center tapped winding. A center tapped winding

can be created by connecting two ends of a split

center winding together on the printed circuit board. In

ISDN-S applications, the primary winding is the line

side transformer winding.

B. The minimum primary inductance and the maximum

distributed capacitance satisfy the transmistter

output and receiver input impedance requirements of

CCITTI I.430 for both the TE and the NT. The maximum

distributed capacitance allows sufficient margin for the

capacitance of the IC and a protection diode network.

It is consistent with the overall maximum value

specified and the permitted length of the basic access

TE cord.

C. The maximum specified unbalanced DC current

capability is based on 20 mH minimum primary OCL

D. National recommends a 1:2 receive transformer, but

used as a 1:1 ratio by connectin only half the secondary

winding. See Nationalâs application note.

Single

Through Hole, 2 kVRMS

PE-64995NL

Dual

Through Hole

TX & RX

PE-65495

E. PE-65950 and PE-65853 are recommended for use

with Siemens PEB 2080/2085 and help in meeting the

required longitudinal balance.

F. Standard packaging for all chokes and transformers

listed in this catalog is anti-static tubes. Optional

anti-static tray packaging can be ordered for the

surface mount SC-1 and LA-1 packages by adding an

âRâ suffix to the part number, (ie: PE-65795R). Optional

tape and reel packaging can be ordered for all surface

mount packages by adding a âTâ suffix to the part

number, (ie: PE-65795T).

G. For PE-65854, OCL at -40C is 27 H minimum. For

maximum performance, using windings (1-8) and (2-7)

as a pair and windings (3-6) and (4-5) as a pair.

H. For transformers and choke modules, refer to data

sheet T632.

Package F

LA-1

SC-1

ID-1

IS-1

Packaging Information

Type Part Weight Parts/Tube Parts/Tray

Parts/Reel

SMT 2.0 Grams

250

SMT

7.0 Grams

150

THT

7.0 Grams

THT

4.0 Grams

Reel Diameter

13 Inches

Tape Width

24 mm

44 mm

Pitch

24 mm

pulseelectronics.com

T604.F (05/12)

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